Authenticated internal service access via crafted fileUrl
Published Feb 22, 2026 · Updated Feb 22, 2026
Server-side request forgery in JeecgBoot 3.9.0 allows remote authenticated users to access internal services via a crafted fileUrl. The /sys/common/uploadImgByHttp endpoint uses the attacker-controlled URL for a server-side image fetch without adequately restricting its destination. A valid application session is required, and resulting requests can reach services accessible from the JeecgBoot server.
Summary
What happened
Server-side request forgery in JeecgBoot 3.9.0 allows remote authenticated users to access internal services via a crafted fileUrl. The /sys/common/uploadImgByHttp endpoint uses the attacker-controlled URL for a server-side image fetch without adequately restricting its destination. A valid application session is required, and resulting requests can reach services accessible from the JeecgBoot server.
The record
- CVE
- CVE-2026-2945
- Published
- Feb 22, 2026
- Updated
- Feb 22, 2026
- Vendor
- Beijing Guoju Information Technology Co., Ltd.
- Product
- JeecgBoot
- Classifications
- CWE-918, T1090
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 22, 2026CVE publishedPublication date reported by the CVE source.
- Feb 22, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=3.9.0
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
- Yuque proof of concept for CVE-2026-2945proof of concept · unverified
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Technologies
Your stack
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Your stack
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